HUNTSVILLE, Alabama -- Huntsville attorneys Brian Clark and Lonzo Robinson have been appointed to represent Stephen Marc Stone, who is charged with killing his wife and 7-year-old son in South Huntsville last month.

Madison County District Court Judge Schuyler H. Richardson was notified Tuesday that Stone, who is the Madison County Jail, formally declared he could not afford a lawyer and Richardson then appointed the two veteran attorneys.

Stone, 33, is charged with the Feb. 24 murders of his wife, Krista Stone, 32, and their son, Zachery Stone, 7 at their home on Chicamauga Trail in South Huntsville. Madison County Coroner Craig Whisenant said Krista Stone died from strangulation and the child died from strangulation and drowning.

The couple had two other young children who were not injured. Stone, who is from Leeds, brought the two younger children with him to Leeds and later turned himself in to Leeds police.

Stone faces a possible death sentence if convicted on capital murder charges of killing two or more people or killing a child under 14.

Madison County District Attorney Rob Broussard is prosecuting the case.